CVE-2020-0556
HIGHCVSS 7.1/10EPSS 1.03%
Last modified
CVE-2020-0556 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. Improper access control in subsystem for BlueZ before version 5.54 may allow an unauthenticated user to potentially enable escalation of privilege and denial of service via adjacent access. EPSS estimates a 1.03% chance of exploitation in the next 30 days.
Description
Improper access control in subsystem for BlueZ before version 5.54 may allow an unauthenticated user to potentially enable escalation of privilege and denial of service via adjacent access
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Bluez | Bluez | < 5.54 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
| Canonical | Ubuntu Linux | 19.10 |
| Debian | Debian Linux | 8.0 |
| Debian | Debian Linux | 9.0 |
| Debian | Debian Linux | 10.0 |
| Opensuse | Leap | 15.1 |
| Opensuse | Leap | 15.2 |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00008.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00055.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00008.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202003-49Third Party Advisory
- https://usn.ubuntu.com/4311-1/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4647Third Party Advisory
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00352.htmlPatch, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00008.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00055.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00008.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202003-49Third Party Advisory
- https://usn.ubuntu.com/4311-1/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4647Third Party Advisory
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00352.htmlPatch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-0556?
Improper access control in subsystem for BlueZ before version 5.54 may allow an unauthenticated user to potentially enable escalation of privilege and denial of service via adjacent access
How severe is CVE-2020-0556?
CVE-2020-0556 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 1.03% probability of exploitation in the next 30 days.
How do I fix CVE-2020-0556?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2020-0556?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST